CypherpunkSamurai

Using d8 for dexing d8

To convert d8 to dex we can use d8 on itself.

Downloading d8.jar

d8.jar is inluded in android build tools zips. We can also download it from Google's Maven Repo, where r8 and d8 are one jar.

Using d8.jar

We can use d8.jar using java and --classpath.

CypherpunkSamurai

DX D8 Desugar Jack Java Compile DalvikVM Android

This is my notes on compiling java source code on android itself.

Searches

dx dalvikvm -CompileOnHost -TEST_ART_RUN_TEST_DEPENDENCIES -TEST_NAME -GC_CONCURRENT -SHA1-Digest -SHA1-Digest-Manifest -formbuilder -dysentery -WebChat -ThomasGross -SurfaceFlinger

• search - dx dalvikvm

CypherpunkSamurai

#!/bin/sh
DIR="tmp_"$$
JAR=`echo $1 | tr '.' ' ' | awk '{ print $1 }'`
rm -rf $JAR.jar
mkdir $DIR
cp $1 $DIR
cd $DIR
echo "** Compiling java file..."
javac -d . -g $1
echo "** Creating temporary jar..."

CypherpunkSamurai

Import All Reg Files in a Folder in Windows using Batch Script

for /f %f in ('dir /b *.reg') do reg import %f
for /f %f in ('dir /b *.reg') do regedit /S %f

Windows Default Services

• https://m.majorgeeks.com/content/page/restore_or_verify_default_services_in_windows_7_10.html

CypherpunkSamurai

# https://securitychops.com/2019/08/31/dev/random/one-liner-to-install-burp-cacert-into-android.html
#
curl --proxy http://127.0.0.1:8080 -o cacert.der http://burp/cert  \
&& openssl x509 -inform DER -in cacert.der -out cacert.pem \
&& cp cacert.der $(openssl x509 -inform PEM -subject_hash_old -in cacert.pem |head -1).0 \
&& adb root \
&& adb remount \
&& adb push $(openssl x509 -inform PEM -subject_hash_old -in cacert.pem |head -1).0 /sdcard/ \
&& echo -n "mv /sdcard/$(openssl x509 -inform PEM -subject_hash_old -in cacert.pem |head -1).0 /system/etc/security/cacerts/" | adb shell \
&& echo -n "chmod 644 /system/etc/security/cacerts/$(openssl x509 -inform PEM -subject_hash_old -in cacert.pem |head -1).0" | adb shell \

CypherpunkSamurai

Exporting C code from IDA Pro

While reversing a few stuff i found it tedious to decompile a lot of functions and copy them, so i found a way to decompile them with IDA Pro at once and write to one .C file.

You'll need IDA Pro 7.x.

Export Headers

First Export Headers Open the file and let IDA Analyze it. Go to File -> Produce file -> Create C header file to a file.

CypherpunkSamurai

#!/usr/bin/env bash

version="0.0.1"

TARGET_PROCESS=$1

if [ ! $TARGET_PROCESS ]; then
    echo 
	echo "Usage: sticker [process name]"
	echo

CypherpunkSamurai

How to GDB android native libraries

[1] Install NDK from android studio

[2] Push appropriate gdb-server to phone

adb push ~/android-sdk-linux/ndk-bundle/prebuilt/android-<arch>/gdbserver/gdbserver /data/local/tmp
adb shell "chmod 777 /data/local/tmp/gdbserver"
adb shell "ls -l /data/local/tmp/gdbserver"

[4] Forward ports

adb forward tcp:1337 tcp:1337

CypherpunkSamurai

Nexus 5 4.4.4
1. setup:
    a. need to downgrade to 4.4.4, root
    b. luckypactcher, GG, xposed
    c. put libhook.so and android_server and libsubstrate.so in /data/local/tmp/ and install aadbg
    d. patch with luckypatcher the middle 2
2. adb shell su -> android_server
3. adb forward tcp:23946 tcp: 23946
4. adb forward tcp:8700 jdwp:PID_OF_GAME
jdb -connect com.sun.jdi.SocketAttach:hostname=localhost,port=8700

CypherpunkSamurai

rmdir "%LocalAppData%\nvim" /s /q
rmdir "%LocalAppData%\nvim-data" /s /q

mkdir "%LocalAppData%\nvim"
mkdir "%LocalAppData%\nvim-data\"
mkdir "%LocalAppData%\nvim-data\site\"
mkdir "%LocalAppData%\nvim-data\site\autoload\"

REM curl https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim > "%LocalAppData%\nvim-data\site\autoload\plug.vim"
powershell "iwr -outf '%LocalAppData%\nvim-data\site\autoload\plug.vim' https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim"